Good heading control is probably the single most important
consideration for good tracking. If you do not maintain good
heading control, you will not know if the aircraft is off course due
to wind drift or due to poor basic airwork. As a result, it will be
more difficult to determine the exact aircraft heading required to
correct for drift.
Remember that radials converge; therefore, needle movement will
occur more rapidly close to the NAVAID. Limit heading changes
to within 10º of drift corrected heading when close to the NAVAID
to avoid overshooting the desired course.
Failure to establish the aircraft on the proper radial initially.
Poor heading control.
Failure to leave in a drift correction.
Excessive heading corrections close to the NAVAID.
Confusing the difference between intercepting and tracking a course. Use an
intercept to get on the desired course. Tracking cannot be commenced until the
aircraft is established on course.
Failure to utilize the CDI to note early course deviations.
Reference: NIFM Part V, "Station Passage."
Station passage is defined as the moment the aircraft passes directly over or abeam the radio
VOR Station passage is noted at the first positive change of the TO/FROM indicator to
"FROM." It is important that this method of determining station passage be used each time. To
receive a FROM indication after station passage, the IND350 must have been set to a course that
resulted in a "TO" indication prior to station passage.
The head of the VOR needle should fall below the 90º benchmark at
approximately the same time as the first positive "FROM"
indication on the IND350.
RADIO INSTRUMENT FLIGHT PROCEDURES 6-21